Beilstein J. Org. Chem.2016,12, 2150–2163, doi:10.3762/bjoc.12.205
block copolymer case, non-fluorinated segments appear to slightly frustrate the aggregation of the more fluorinated block. However, in situ temperaturedependentRamanspectroscopy shows that the intramolecular order is more thermally stable in the block copolymer than in the corresponding blend
, suggesting that such materials may be interesting for enhanced thermal stability of organic photovoltaic active layers based on similar systems.
Keywords: conjugated block-copolymer synthesis; fluorination; microphase stabilization; polythiophene; temperature-dependentRamanspectroscopy; Introduction
With
, but critically increases the thermal stability of intramolecular order, as observed by temperaturedependentRamanspectroscopy studies.
Results and Discussion
Synthesis
The monomers and homopolymers P3OT and F-P3OT were synthesized via KCTP from the activated monomers 2 and 4, as reported in our
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Graphical Abstract
Scheme 1:
Grignard metathesis polymerization method of synthesizing the diblock copolymer. Relative block len...